<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 2. 为ECharts准备一个具备大小 (宽度) 的Dom -->
      <div id="main" style="width: 750px; height: 400px;"></div>
    </el-card>
  </div>
</template>

<script>
// 1. 导入 echarts
import * as echarts from 'echarts';
import _ from 'lodash'

export default {
  data() {
    return {
      // 需要合并的数据
      options:{}
    };
  },
  created() {},
  // 在DOM元素渲染结束后才执行
  async mounted() {
    // 3. 基于准备好的DOM, 初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'));

    const {data:res} = await this.$http.get('reports/type/1')
    if(res.meta.status !== 200) {
      return this.$message.error('获取数据失败')
    }

    // 4. 准备数据和配置项
    const result = _.merge(res.data,this.options) 
    // 5. 展示数据
    myChart.setOption(result);
  },
  methods: {}
};
</script>

<style lang="less" scoped>
</style>